1208647253 has 16 divisors (see below), whose sum is σ = 1353666816. Its totient is φ = 1069731840.

The previous prime is 1208647243. The next prime is 1208647267. The reversal of 1208647253 is 3527468021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1208647253 - 2¹² = 1208643157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208647243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93725 + ... + 105837.

It is an arithmetic number, because the mean of its divisors is an integer number (84604176).

Almost surely, 2^1208647253 is an apocalyptic number.

It is an amenable number.

1208647253 is a deficient number, since it is larger than the sum of its proper divisors (145019563).

1208647253 is a wasteful number, since it uses less digits than its factorization.

1208647253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12364.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1208647253 is about 34765.6044532524. The cubic root of 1208647253 is about 1065.2049839443.

The spelling of 1208647253 in words is "one billion, two hundred eight million, six hundred forty-seven thousand, two hundred fifty-three".